ICD-9 Code 535.50

Unspecified gastritis and gastroduodenitis, without mention of hemorrhage

Not Valid for Submission

535.50 is a legacy non-billable code used to specify a medical diagnosis of unspecified gastritis and gastroduodenitis, without mention of hemorrhage. This code was replaced on September 30, 2015 by its ICD-10 equivalent.

ICD-9: 535.50
Short Description:Gstr/ddnts NOS w/o hmrhg
Long Description:Unspecified gastritis and gastroduodenitis, without mention of hemorrhage

Convert 535.50 to ICD-10

The following crosswalk between ICD-9 to ICD-10 is based based on the General Equivalence Mappings (GEMS) information:

  • K29.70 - Gastritis, unspecified, without bleeding
  • K29.90 - Gastroduodenitis, unspecified, without bleeding

Code Classification

  • Diseases of the digestive system (520–579)
    • Diseases of esophagus, stomach, and duodenum (530-539)
      • 535 Gastritis and duodenitis

Information for Medical Professionals

Information for Patients


Stomach Disorders

Your stomach is an organ between your esophagus and small intestine. It is where digestion of protein begins. The stomach has three tasks. It stores swallowed food. It mixes the food with stomach acids. Then it sends the mixture on to the small intestine.

Most people have a problem with their stomach at one time or another. Indigestion and heartburn are common problems. You can relieve some stomach problems with over-the-counter medicines and lifestyle changes, such as avoiding fatty foods or eating more slowly. Other problems like peptic ulcers or GERD require medical attention.

You should see a doctor if you have any of the following:

  • Blood when you have a bowel movement
  • Severe abdominal pain
  • Heartburn not relieved by antacids
  • Unintended weight loss
  • Ongoing vomiting or diarrhea

NIH: National Institute of Diabetes and Digestive and Kidney Diseases


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ICD-9 Footnotes

General Equivalence Map Definitions
The ICD-9 and ICD-10 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.